GE
D
IRECTION GB091046, REVISION 2 VIVID E9 / VIVID E7 BT’13 SERVICE MANUAL
Chapter 7 - Diagnostics / troubleshooting 7 - 21
Section 7-10
Noise troubleshooting
7-10-1 General Recommendations
Ultrasound machines are susceptible to Electromagnetic Interference (EMI) from radio frequencies,
magnetic fields, and transients in the air or wiring. They also generate EMI. The VIVID E9 / VIVID E7
complies with limits as stated on the EMC label. However there is no guarantee that interference will not
occur in a particular installation.
Possible EMI sources should be identified before the unit is installed.
Electrical and electronic equipment may produce EMI unintentionally as the result of a defect. Some of
these sources include:
• medical lasers
• scanners
• cauterizing guns
•computers
•monitors
• fans
• gel warmers
• microwave ovens
• light dimmers
• portable phones
The presence of a broadcast station or broadcast van may also cause interference.
To Next Page
Loading...
